//
//  Animal.h
//  作业8
//
//  Created by dllo on 16/7/13.
//  Copyright © 2016年 YMJ. All rights reserved.
//

#import <Foundation/Foundation.h>

@interface Animal : NSObject
@property (nonatomic,copy) NSString *__nonnull name;
@property (nonatomic,copy) NSString *__nullable sex;
@property (null_resettable,nonatomic,strong) NSArray *friends;
@end
